similar to: protected method access

In the example below, what is the dash doing between the class attribute and array: (field_helpers - [:label, :check_box, :radio_button, :fields_for, :hidden_field, :file_field]).each do |selector| -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to

>> reload! Reloading... => true >> puts Class < Module true => nil >> puts Module < Class false => nil >> puts Module < Object true => nil >> puts Object < Module false => nil >> Object.parent => Object The above indicates that the Class object instance inherits from the Module object instance and the Module object instance

"Object is the root of Ruby''s class hierarchy. Its methods are available to all classes unless explicitly overridden." Wouldn''t Class class be at the root of the class hierarchy? After all, look at this: 1.9.2p290 :006 > Object.instance_of? Class => true Object is an instance of class, after all we can use one of Class'' instance methods on Object:

Hey all, Chronic will parse a date range in console: Chronic.parse(1/1/2011 - 1/1/2012, :guess => false) => 2012-01-01 12:00:00 -0500..2012-01-01 12:00:01 -0500 However, when I use logger to check if it''s parsing in application, it is not: logger.info "The value of history date is #{history_date}" => The value of history date is 1/1/2011 - 1/1/2012

In console, I run the following and any? returns true: drivers = Driver.select("drivers.*, drivers.id").joins([:reports, :driving_habits]).where("extract(MONTH FROM reports.time) = ? AND extract(YEAR FROM reports.time) = ?", 3, 2013).uniq.order("drivers.id asc").page(2).per(1) drivers.any? => true This correctly evaluates to true because the relation contains one

append_features(mod) The documentation says: When this module is included in another, Ruby calls append_features in this module, passing it the receiving module in mod. Ruby’s default implementation is to add the constants, methods, and module variables of this module to mod if this module has not already been added to mod or one of its ancestors. See also Module#include. What if this module is

I''m looking at the documentation: http://ruby-doc.org/stdlib-2.0/libdoc/net/http/rdoc/Net/HTTP.html And I notice two uses of Net::HTTP. Both are using GET requests. But what''s the difference? When to use which? Net::HTTP.start(uri.host, uri.port) do |http| request = Net::HTTP::Get.new uri response = http.request request # Net::HTTPResponse object end uri =

The % is modulus (remainder) operator and ^ is bitwise. In this context, we take a file, and go through each character and encrypt it. But why are the ^ and % operators used here: def encrypt(reader, writer) key_index = 0 while not reader.eof? clear_char = reader.getc encrypted_char = clear_char ^ @key[key_index] writer.putc(encrypted_char) key_index = (key_index +

As a big fan of Wikipedia, it's frustrating to see how little there is about R in the correlated project, the Wikibooks: http://en.wikibooks.org/wiki/R_Programming Alberto Monteiro

when you add a gem to the Gemfile and then run bundle install, where does the command look for the gem? If you had "gem ''rails'', :git => ''github.com/rails/rails.git", I assume it would update your system .rvm gems directory with the latest github commits. But what is the default repository that bundler looks for gems? -- You received this message because

Hello, (This is a newbie question. I skimmed though the mailing list archive to try to find the answer, but didn't find anything. Maybe I'm just not looking for the right thing.) Are there any tools that could be used to convert a series of frames (stored as JPEG's or something), for a movies, into a Theora file? TIA See ya -- Charles Iliya Krempeaux, B.Sc. charles @

I''m careful to create separate gemsets for each project, so when I run bundle install, it only installs gems for that gemset. This way gems dont creep into the wrong projects. Now I just pulled a project from github. I made sure I was in the correct gemset, and then I run bundle install and it works fine. but then when I use rake to create the database "rake db:create". I get

Hello, (This is yet another newbie question.) My goal is to record Video and Audio, from a webcam and microphone, and record them in ogg format. (Using Theora and Vorbis.) I'm aware that I can use video4linux or video4linux2 to get the video. And use various API's for audio. And can use APIs like GStreamer to do the encoding, etc. But, if possible, I like something a little more

Hi, Working with apache-sshd I found that it forces ~/.ssh/config to be owned by user without group/others permissions. It failed for me within my valid openssh environment. Within sources (readconf.c::read_config_file), I found that openssh only enforces ownership by user and not group/others write. When I opened an issue, I was referred to this[1] wiki page (not sure who maintain it) claiming

Hey all, I created a seed task: def books! books = Book.where(:type_id => Type.find_by_name(''Fiction'')).order(''id'') books.each do |book| @books = 4.times.map do |i| subbook! "#{book.book_num}-#{i}".to_s, :book_state => BookState[:available].id, :book => book end end puts "log it:

An R community member named Ajay wrote today about the "R programming" wiki-book project (link to Ajay's post<http://decisionstats.wordpress.com/2010/05/10/the-r-online-wikibook/>), and I would like to know what you think about the project: http://en.wikibooks.org/wiki/R_Programming Ajay believes that > "What we need is a consolidated document that can add 1) show

Hey all, I get an undefined method `join'' for #<String NoMethodError. student.rb has_one :student_fail attr_accessor :student_fail_attribute #controller def student_fail @student = @student.find params[:id] def update_student_fail @student.build_student_fail params[:student][:student_fail_attribute] if @student.save #view form_for @student do |f|

Hi, For my data, I followed the example of http://en.wikibooks.org/wiki/Data_Mining_Algorithms_In_R/Clustering/K-Means#Execution and got some very nice results. Despite the fact, that I want to achieve a bit more by clustering my data (stratification beyond case-control), the actual data-frame contains a column labeled "C" which holds a case-control indicator (here either "Z"

On 09/11/23, Marian Beermann (public at enkore.de) wrote: > ... while OpenSSH does support using a CA in conjunction with hostbased > authentication, it still requires a list of all authorized host names in the > rhosts / shosts file. I'm not familiar with the use of .rhosts/.shosts, but I don't think those are needed at all with a machine or per-user known_hosts file/files

Hey all, I know that this: Called id for nil, which would mistakenly be 4 -- if you really wanted the id of nil, use object_id means that I have an instance variable that has not been initialized. However, I''m a little confused as to what to do in a signup form for form_for: <% content_for :login do %> <% form_for @user, :url => { :action => "login" } do